Mercurial > hg
annotate mercurial/posix.py @ 46367:57370e7deb7b
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Differential Revision: https://phab.mercurial-scm.org/D9819
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 18 Jan 2021 10:24:11 +0100 |
parents | 89a2afe31e82 |
children | 6595e22048fe |
rev | line source |
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1 # posix.py - Posix utility function implementations for Mercurial |
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2 # |
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3 # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 import errno |
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11 import fcntl |
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12 import getpass |
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13 import grp |
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14 import os |
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15 import pwd |
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16 import re |
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17 import select |
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18 import stat |
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19 import sys |
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20 import tempfile |
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21 import unicodedata |
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22 |
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23 from .i18n import _ |
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24 from .pycompat import ( |
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25 getattr, |
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26 open, |
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27 ) |
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28 from . import ( |
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29 encoding, |
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30 error, |
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31 policy, |
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32 pycompat, |
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33 ) |
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34 |
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35 osutil = policy.importmod('osutil') |
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36 |
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37 normpath = os.path.normpath |
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38 samestat = os.path.samestat |
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39 try: |
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40 oslink = os.link |
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41 except AttributeError: |
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42 # Some platforms build Python without os.link on systems that are |
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43 # vaguely unix-like but don't have hardlink support. For those |
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44 # poor souls, just say we tried and that it failed so we fall back |
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45 # to copies. |
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46 def oslink(src, dst): |
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47 raise OSError( |
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48 errno.EINVAL, b'hardlinks not supported: %s to %s' % (src, dst) |
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49 ) |
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50 |
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51 |
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52 readlink = os.readlink |
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53 unlink = os.unlink |
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54 rename = os.rename |
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55 removedirs = os.removedirs |
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56 expandglobs = False |
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57 |
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58 umask = os.umask(0) |
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59 os.umask(umask) |
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60 |
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61 if not pycompat.ispy3: |
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62 |
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63 def posixfile(name, mode='r', buffering=-1): |
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64 fp = open(name, mode=mode, buffering=buffering) |
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65 # The position when opening in append mode is implementation defined, so |
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66 # make it consistent by always seeking to the end. |
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67 if 'a' in mode: |
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68 fp.seek(0, os.SEEK_END) |
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69 return fp |
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70 |
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71 |
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72 else: |
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73 # The underlying file object seeks as required in Python 3: |
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74 # https://github.com/python/cpython/blob/v3.7.3/Modules/_io/fileio.c#L474 |
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75 posixfile = open |
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76 |
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77 |
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78 def split(p): |
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79 """Same as posixpath.split, but faster |
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80 |
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81 >>> import posixpath |
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82 >>> for f in [b'/absolute/path/to/file', |
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83 ... b'relative/path/to/file', |
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84 ... b'file_alone', |
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85 ... b'path/to/directory/', |
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86 ... b'/multiple/path//separators', |
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87 ... b'/file_at_root', |
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88 ... b'///multiple_leading_separators_at_root', |
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89 ... b'']: |
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90 ... assert split(f) == posixpath.split(f), f |
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91 """ |
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92 ht = p.rsplit(b'/', 1) |
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93 if len(ht) == 1: |
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94 return b'', p |
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95 nh = ht[0].rstrip(b'/') |
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96 if nh: |
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97 return nh, ht[1] |
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98 return ht[0] + b'/', ht[1] |
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99 |
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100 |
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101 def openhardlinks(): |
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102 '''return true if it is safe to hold open file handles to hardlinks''' |
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103 return True |
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104 |
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105 |
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106 def nlinks(name): |
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107 '''return number of hardlinks for the given file''' |
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108 return os.lstat(name).st_nlink |
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109 |
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110 |
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111 def parsepatchoutput(output_line): |
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112 """parses the output produced by patch and returns the filename""" |
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113 pf = output_line[14:] |
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114 if pycompat.sysplatform == b'OpenVMS': |
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115 if pf[0] == b'`': |
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116 pf = pf[1:-1] # Remove the quotes |
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117 else: |
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118 if pf.startswith(b"'") and pf.endswith(b"'") and b" " in pf: |
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119 pf = pf[1:-1] # Remove the quotes |
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120 return pf |
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121 |
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122 |
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123 def sshargs(sshcmd, host, user, port): |
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124 '''Build argument list for ssh''' |
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125 args = user and (b"%s@%s" % (user, host)) or host |
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126 if b'-' in args[:1]: |
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127 raise error.Abort( |
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128 _(b'illegal ssh hostname or username starting with -: %s') % args |
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129 ) |
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130 args = shellquote(args) |
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131 if port: |
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132 args = b'-p %s %s' % (shellquote(port), args) |
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133 return args |
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134 |
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135 |
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136 def isexec(f): |
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137 """check whether a file is executable""" |
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138 return os.lstat(f).st_mode & 0o100 != 0 |
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139 |
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140 |
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141 def setflags(f, l, x): |
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142 st = os.lstat(f) |
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143 s = st.st_mode |
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144 if l: |
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145 if not stat.S_ISLNK(s): |
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146 # switch file to link |
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147 with open(f, b'rb') as fp: |
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148 data = fp.read() |
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149 unlink(f) |
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150 try: |
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151 os.symlink(data, f) |
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152 except OSError: |
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153 # failed to make a link, rewrite file |
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154 with open(f, b"wb") as fp: |
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155 fp.write(data) |
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156 |
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157 # no chmod needed at this point |
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158 return |
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159 if stat.S_ISLNK(s): |
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160 # switch link to file |
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161 data = os.readlink(f) |
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162 unlink(f) |
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163 with open(f, b"wb") as fp: |
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164 fp.write(data) |
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165 s = 0o666 & ~umask # avoid restatting for chmod |
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166 |
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167 sx = s & 0o100 |
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168 if st.st_nlink > 1 and bool(x) != bool(sx): |
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169 # the file is a hardlink, break it |
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170 with open(f, b"rb") as fp: |
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171 data = fp.read() |
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172 unlink(f) |
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173 with open(f, b"wb") as fp: |
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174 fp.write(data) |
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175 |
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176 if x and not sx: |
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177 # Turn on +x for every +r bit when making a file executable |
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178 # and obey umask. |
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179 os.chmod(f, s | (s & 0o444) >> 2 & ~umask) |
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180 elif not x and sx: |
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181 # Turn off all +x bits |
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182 os.chmod(f, s & 0o666) |
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183 |
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184 |
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185 def copymode(src, dst, mode=None, enforcewritable=False): |
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186 """Copy the file mode from the file at path src to dst. |
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187 If src doesn't exist, we're using mode instead. If mode is None, we're |
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188 using umask.""" |
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189 try: |
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190 st_mode = os.lstat(src).st_mode & 0o777 |
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191 except OSError as inst: |
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192 if inst.errno != errno.ENOENT: |
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193 raise |
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194 st_mode = mode |
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195 if st_mode is None: |
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196 st_mode = ~umask |
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197 st_mode &= 0o666 |
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198 |
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199 new_mode = st_mode |
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200 |
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201 if enforcewritable: |
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202 new_mode |= stat.S_IWUSR |
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203 |
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204 os.chmod(dst, new_mode) |
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205 |
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206 |
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207 def checkexec(path): |
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208 """ |
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209 Check whether the given path is on a filesystem with UNIX-like exec flags |
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210 |
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211 Requires a directory (like /foo/.hg) |
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212 """ |
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213 |
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214 # VFAT on some Linux versions can flip mode but it doesn't persist |
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215 # a FS remount. Frequently we can detect it if files are created |
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216 # with exec bit on. |
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217 |
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218 try: |
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219 EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
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220 basedir = os.path.join(path, b'.hg') |
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221 cachedir = os.path.join(basedir, b'wcache') |
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222 storedir = os.path.join(basedir, b'store') |
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223 if not os.path.exists(cachedir): |
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224 try: |
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225 # we want to create the 'cache' directory, not the '.hg' one. |
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226 # Automatically creating '.hg' directory could silently spawn |
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227 # invalid Mercurial repositories. That seems like a bad idea. |
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228 os.mkdir(cachedir) |
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229 if os.path.exists(storedir): |
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230 copymode(storedir, cachedir) |
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231 else: |
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232 copymode(basedir, cachedir) |
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233 except (IOError, OSError): |
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234 # we other fallback logic triggers |
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235 pass |
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236 if os.path.isdir(cachedir): |
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237 checkisexec = os.path.join(cachedir, b'checkisexec') |
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238 checknoexec = os.path.join(cachedir, b'checknoexec') |
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239 |
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240 try: |
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241 m = os.stat(checkisexec).st_mode |
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242 except OSError as e: |
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243 if e.errno != errno.ENOENT: |
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244 raise |
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245 # checkisexec does not exist - fall through ... |
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246 else: |
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247 # checkisexec exists, check if it actually is exec |
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248 if m & EXECFLAGS != 0: |
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249 # ensure checkisexec exists, check it isn't exec |
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250 try: |
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251 m = os.stat(checknoexec).st_mode |
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252 except OSError as e: |
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253 if e.errno != errno.ENOENT: |
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254 raise |
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255 open(checknoexec, b'w').close() # might fail |
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256 m = os.stat(checknoexec).st_mode |
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257 if m & EXECFLAGS == 0: |
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258 # check-exec is exec and check-no-exec is not exec |
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259 return True |
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260 # checknoexec exists but is exec - delete it |
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261 unlink(checknoexec) |
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262 # checkisexec exists but is not exec - delete it |
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263 unlink(checkisexec) |
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264 |
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265 # check using one file, leave it as checkisexec |
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266 checkdir = cachedir |
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267 else: |
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268 # check directly in path and don't leave checkisexec behind |
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269 checkdir = path |
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270 checkisexec = None |
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271 fh, fn = pycompat.mkstemp(dir=checkdir, prefix=b'hg-checkexec-') |
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272 try: |
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273 os.close(fh) |
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274 m = os.stat(fn).st_mode |
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275 if m & EXECFLAGS == 0: |
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276 os.chmod(fn, m & 0o777 | EXECFLAGS) |
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277 if os.stat(fn).st_mode & EXECFLAGS != 0: |
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278 if checkisexec is not None: |
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279 os.rename(fn, checkisexec) |
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280 fn = None |
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281 return True |
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282 finally: |
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283 if fn is not None: |
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284 unlink(fn) |
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285 except (IOError, OSError): |
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286 # we don't care, the user probably won't be able to commit anyway |
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287 return False |
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288 |
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289 |
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290 def checklink(path): |
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291 """check whether the given path is on a symlink-capable filesystem""" |
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292 # mktemp is not racy because symlink creation will fail if the |
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293 # file already exists |
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294 while True: |
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295 cachedir = os.path.join(path, b'.hg', b'wcache') |
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296 checklink = os.path.join(cachedir, b'checklink') |
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297 # try fast path, read only |
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298 if os.path.islink(checklink): |
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299 return True |
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300 if os.path.isdir(cachedir): |
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301 checkdir = cachedir |
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302 else: |
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303 checkdir = path |
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304 cachedir = None |
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305 name = tempfile.mktemp( |
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306 dir=pycompat.fsdecode(checkdir), prefix=r'checklink-' |
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307 ) |
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308 name = pycompat.fsencode(name) |
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309 try: |
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310 fd = None |
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311 if cachedir is None: |
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312 fd = pycompat.namedtempfile( |
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313 dir=checkdir, prefix=b'hg-checklink-' |
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314 ) |
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315 target = os.path.basename(fd.name) |
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316 else: |
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317 # create a fixed file to link to; doesn't matter if it |
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318 # already exists. |
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319 target = b'checklink-target' |
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320 try: |
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321 fullpath = os.path.join(cachedir, target) |
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322 open(fullpath, b'w').close() |
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323 except IOError as inst: |
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324 if ( |
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325 inst[0] == errno.EACCES |
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326 ): # pytype: disable=unsupported-operands |
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327 # If we can't write to cachedir, just pretend |
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328 # that the fs is readonly and by association |
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329 # that the fs won't support symlinks. This |
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330 # seems like the least dangerous way to avoid |
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331 # data loss. |
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332 return False |
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333 raise |
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334 try: |
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335 os.symlink(target, name) |
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336 if cachedir is None: |
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337 unlink(name) |
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338 else: |
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339 try: |
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340 os.rename(name, checklink) |
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341 except OSError: |
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342 unlink(name) |
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343 return True |
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344 except OSError as inst: |
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345 # link creation might race, try again |
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346 if inst.errno == errno.EEXIST: |
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347 continue |
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348 raise |
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349 finally: |
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350 if fd is not None: |
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351 fd.close() |
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352 except AttributeError: |
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353 return False |
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354 except OSError as inst: |
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355 # sshfs might report failure while successfully creating the link |
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356 if inst.errno == errno.EIO and os.path.exists(name): |
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357 unlink(name) |
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358 return False |
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359 |
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360 |
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361 def checkosfilename(path): |
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362 """Check that the base-relative path is a valid filename on this platform. |
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363 Returns None if the path is ok, or a UI string describing the problem.""" |
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364 return None # on posix platforms, every path is ok |
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365 |
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366 |
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367 def getfsmountpoint(dirpath): |
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368 """Get the filesystem mount point from a directory (best-effort) |
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369 |
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370 Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
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371 """ |
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372 return getattr(osutil, 'getfsmountpoint', lambda x: None)(dirpath) |
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373 |
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374 |
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375 def getfstype(dirpath): |
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376 """Get the filesystem type name from a directory (best-effort) |
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377 |
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378 Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
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379 """ |
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380 return getattr(osutil, 'getfstype', lambda x: None)(dirpath) |
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381 |
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382 |
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383 def setbinary(fd): |
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384 pass |
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385 |
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386 |
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387 def pconvert(path): |
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388 return path |
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389 |
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390 |
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391 def localpath(path): |
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392 return path |
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393 |
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394 |
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395 def samefile(fpath1, fpath2): |
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396 """Returns whether path1 and path2 refer to the same file. This is only |
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397 guaranteed to work for files, not directories.""" |
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398 return os.path.samefile(fpath1, fpath2) |
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399 |
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400 |
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401 def samedevice(fpath1, fpath2): |
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402 """Returns whether fpath1 and fpath2 are on the same device. This is only |
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403 guaranteed to work for files, not directories.""" |
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404 st1 = os.lstat(fpath1) |
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405 st2 = os.lstat(fpath2) |
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406 return st1.st_dev == st2.st_dev |
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407 |
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408 |
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409 # os.path.normcase is a no-op, which doesn't help us on non-native filesystems |
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410 def normcase(path): |
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411 return path.lower() |
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412 |
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413 |
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414 # what normcase does to ASCII strings |
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415 normcasespec = encoding.normcasespecs.lower |
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416 # fallback normcase function for non-ASCII strings |
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417 normcasefallback = normcase |
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418 |
34647 | 419 if pycompat.isdarwin: |
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420 |
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421 def normcase(path): |
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422 """ |
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423 Normalize a filename for OS X-compatible comparison: |
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424 - escape-encode invalid characters |
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425 - decompose to NFD |
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|
426 - lowercase |
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darwin: omit ignorable codepoints when normcase()ing a file path
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427 - omit ignored characters [200c-200f, 202a-202e, 206a-206f,feff] |
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|
428 |
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|
429 >>> normcase(b'UPPER') |
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|
430 'upper' |
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431 >>> normcase(b'Caf\\xc3\\xa9') |
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432 'cafe\\xcc\\x81' |
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|
433 >>> normcase(b'\\xc3\\x89') |
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|
434 'e\\xcc\\x81' |
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435 >>> normcase(b'\\xb8\\xca\\xc3\\xca\\xbe\\xc8.JPG') # issue3918 |
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|
436 '%b8%ca%c3\\xca\\xbe%c8.jpg' |
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437 """ |
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|
438 |
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|
439 try: |
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440 return encoding.asciilower(path) # exception for non-ASCII |
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441 except UnicodeDecodeError: |
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442 return normcasefallback(path) |
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443 |
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444 normcasespec = encoding.normcasespecs.lower |
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445 |
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446 def normcasefallback(path): |
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|
447 try: |
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448 u = path.decode('utf-8') |
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449 except UnicodeDecodeError: |
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450 # OS X percent-encodes any bytes that aren't valid utf-8 |
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451 s = b'' |
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posix: use getutf8char to handle OS X filename percent-escaping
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|
452 pos = 0 |
27380
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mac: fix percent-encoding of non-utf-8 characters (issue4999)
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parents:
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|
453 l = len(path) |
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|
454 while pos < l: |
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|
455 try: |
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parents:
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|
456 c = encoding.getutf8char(path, pos) |
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|
457 pos += len(c) |
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|
458 except ValueError: |
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|
459 c = b'%%%02X' % ord(path[pos : pos + 1]) |
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|
460 pos += 1 |
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parents:
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|
461 s += c |
19131
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hfs+: rewrite percent-escaper (issue3918)
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parents:
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changeset
|
462 |
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posix: add extended support for OS X path folding
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|
463 u = s.decode('utf-8') |
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|
464 |
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465 # Decompose then lowercase (HFS+ technote specifies lower) |
43506
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parents:
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466 enc = unicodedata.normalize('NFD', u).lower().encode('utf-8') |
23597
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darwin: omit ignorable codepoints when normcase()ing a file path
Augie Fackler <raf@durin42.com>
parents:
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changeset
|
467 # drop HFS+ ignored characters |
7a5bcd471f2e
darwin: omit ignorable codepoints when normcase()ing a file path
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parents:
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|
468 return encoding.hfsignoreclean(enc) |
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469 |
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470 |
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|
471 if pycompat.sysplatform == b'cygwin': |
15711
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cygwin: add cygwin specific normcase logic
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parents:
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|
472 # workaround for cygwin, in which mount point part of path is |
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473 # treated as case sensitive, even though underlying NTFS is case |
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474 # insensitive. |
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475 |
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parents:
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|
476 # default mount points |
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|
477 cygwinmountpoints = sorted( |
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478 [ |
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479 b"/usr/bin", |
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480 b"/usr/lib", |
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481 b"/cygdrive", |
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482 ], |
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483 reverse=True, |
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484 ) |
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485 |
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parents:
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|
486 # use upper-ing as normcase as same as NTFS workaround |
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|
487 def normcase(path): |
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parents:
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changeset
|
488 pathlen = len(path) |
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py3: replace os.sep with pycompat.ossep (part 2 of 4)
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parents:
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changeset
|
489 if (pathlen == 0) or (path[0] != pycompat.ossep): |
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parents:
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|
490 # treat as relative |
17203
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util, posix: eliminate encodinglower and encodingupper
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parents:
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|
491 return encoding.upper(path) |
15711
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changeset
|
492 |
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parents:
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diff
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|
493 # to preserve case of mountpoint part |
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parents:
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|
494 for mp in cygwinmountpoints: |
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parents:
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|
495 if not path.startswith(mp): |
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|
496 continue |
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parents:
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|
497 |
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|
498 mplen = len(mp) |
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|
499 if mplen == pathlen: # mount point itself |
15711
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|
500 return mp |
30614
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py3: replace os.sep with pycompat.ossep (part 2 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30612
diff
changeset
|
501 if path[mplen] == pycompat.ossep: |
17203
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parents:
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|
502 return mp + encoding.upper(path[mplen:]) |
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parents:
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changeset
|
503 |
17203
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parents:
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|
504 return encoding.upper(path) |
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parents:
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diff
changeset
|
505 |
24596
75ea27f1711d
cygwin: define normcase spec and fallback
Siddharth Agarwal <sid0@fb.com>
parents:
24595
diff
changeset
|
506 normcasespec = encoding.normcasespecs.other |
75ea27f1711d
cygwin: define normcase spec and fallback
Siddharth Agarwal <sid0@fb.com>
parents:
24595
diff
changeset
|
507 normcasefallback = normcase |
75ea27f1711d
cygwin: define normcase spec and fallback
Siddharth Agarwal <sid0@fb.com>
parents:
24595
diff
changeset
|
508 |
16240
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
509 # Cygwin translates native ACLs to POSIX permissions, |
95e45abe7e8e
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parents:
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diff
changeset
|
510 # but these translations are not supported by native |
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parents:
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|
511 # tools, so the exec bit tends to be set erroneously. |
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parents:
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changeset
|
512 # Therefore, disable executable bit access on Cygwin. |
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A. S. Budden <abudden@gmail.com>
parents:
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changeset
|
513 def checkexec(path): |
95e45abe7e8e
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parents:
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|
514 return False |
95e45abe7e8e
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A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
515 |
16241
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
516 # Similarly, Cygwin's symlink emulation is likely to create |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
517 # problems when Mercurial is used from both Cygwin and native |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
518 # Windows, with other native tools, or on shared volumes |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
519 def checklink(path): |
60cc3a0d2249
posix: disable cygwin's symlink emulation
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parents:
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diff
changeset
|
520 return False |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
521 |
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changeset
|
522 |
23683
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
523 _needsshellquote = None |
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changeset
|
524 |
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diff
changeset
|
525 |
7890
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util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
526 def shellquote(s): |
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|
527 if pycompat.sysplatform == b'OpenVMS': |
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|
528 return b'"%s"' % s |
23683
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posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
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diff
changeset
|
529 global _needsshellquote |
5edb387158a1
posix: quote the specified string only when it may have to be quoted
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parents:
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diff
changeset
|
530 if _needsshellquote is None: |
31491
492c64afc54c
py3: make the regular expression bytes to prevent TypeError
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30697
diff
changeset
|
531 _needsshellquote = re.compile(br'[^a-zA-Z0-9._/+-]').search |
24108
d65ecb814fc0
shellquote: fix missing quotes for empty string
Yuya Nishihara <yuya@tcha.org>
parents:
23683
diff
changeset
|
532 if s and not _needsshellquote(s): |
23683
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posix: quote the specified string only when it may have to be quoted
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parents:
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diff
changeset
|
533 # "s" shouldn't have to be quoted |
5edb387158a1
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parents:
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diff
changeset
|
534 return s |
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
535 else: |
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changeset
|
536 return b"'%s'" % s.replace(b"'", b"'\\''") |
7890
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util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
537 |
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changeset
|
538 |
36415
0cb09c322647
util: factor out shellsplit() function
Yuya Nishihara <yuya@tcha.org>
parents:
36303
diff
changeset
|
539 def shellsplit(s): |
0cb09c322647
util: factor out shellsplit() function
Yuya Nishihara <yuya@tcha.org>
parents:
36303
diff
changeset
|
540 """Parse a command string in POSIX shell way (best-effort)""" |
0cb09c322647
util: factor out shellsplit() function
Yuya Nishihara <yuya@tcha.org>
parents:
36303
diff
changeset
|
541 return pycompat.shlexsplit(s, posix=True) |
0cb09c322647
util: factor out shellsplit() function
Yuya Nishihara <yuya@tcha.org>
parents:
36303
diff
changeset
|
542 |
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changeset
|
543 |
7890
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
544 def testpid(pid): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
545 '''return False if pid dead, True if running or not sure''' |
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changeset
|
546 if pycompat.sysplatform == b'OpenVMS': |
7890
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
547 return True |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
548 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
549 os.kill(pid, 0) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
550 return True |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
551 except OSError as inst: |
7890
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
552 return inst.errno != errno.ESRCH |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
553 |
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parents:
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changeset
|
554 |
8657
3fa92c618624
posix: do not use fstat in isowner
Martin Geisler <mg@lazybytes.net>
parents:
8614
diff
changeset
|
555 def isowner(st): |
3fa92c618624
posix: do not use fstat in isowner
Martin Geisler <mg@lazybytes.net>
parents:
8614
diff
changeset
|
556 """Return True if the stat object st is from the current user.""" |
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
557 return st.st_uid == os.getuid() |
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
558 |
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changeset
|
559 |
14271
4030630fb59c
rename util.find_exe to findexe
Adrian Buehlmann <adrian@cadifra.com>
parents:
14237
diff
changeset
|
560 def findexe(command): |
45942
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Augie Fackler <raf@durin42.com>
parents:
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changeset
|
561 """Find executable for command searching like which does. |
7890
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
562 If command is a basename then PATH is searched for command. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
563 PATH isn't searched if command is an absolute or relative path. |
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|
564 If command isn't found None is returned.""" |
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687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
565 if pycompat.sysplatform == b'OpenVMS': |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
566 return command |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
567 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
568 def findexisting(executable): |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
569 b'Will return executable if existing file' |
15499
58f96703a9ab
posix: fix findexe() to check for file type and access
Marc-Antoine Ruel <maruel@google.com>
parents:
15488
diff
changeset
|
570 if os.path.isfile(executable) and os.access(executable, os.X_OK): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
571 return executable |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
572 return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
573 |
30614
cfe66dcf45c0
py3: replace os.sep with pycompat.ossep (part 2 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30612
diff
changeset
|
574 if pycompat.ossep in command: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
575 return findexisting(command) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
576 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
577 if pycompat.sysplatform == b'plan9': |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
578 return findexisting(os.path.join(b'/bin', command)) |
16383
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
Steven Stallion <sstallion@gmail.com>
parents:
16241
diff
changeset
|
579 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
580 for path in encoding.environ.get(b'PATH', b'').split(pycompat.ospathsep): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
581 executable = findexisting(os.path.join(path, command)) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
582 if executable is not None: |
15499
58f96703a9ab
posix: fix findexe() to check for file type and access
Marc-Antoine Ruel <maruel@google.com>
parents:
15488
diff
changeset
|
583 return executable |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
584 return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
585 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
586 |
14237
4d684d8210a1
rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents:
14235
diff
changeset
|
587 def setsignalhandler(): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
588 pass |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
589 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
590 |
32291
bd872f64a8ba
cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents:
32129
diff
changeset
|
591 _wantedkinds = {stat.S_IFREG, stat.S_IFLNK} |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
592 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
593 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
594 def statfiles(files): |
45942
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
45718
diff
changeset
|
595 """Stat each file in files. Yield each stat, or None if a file does not |
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
45718
diff
changeset
|
596 exist or has a type we don't care about.""" |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
597 lstat = os.lstat |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
598 getkind = stat.S_IFMT |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
599 for nf in files: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
600 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
601 st = lstat(nf) |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
602 if getkind(st.st_mode) not in _wantedkinds: |
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
603 st = None |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
604 except OSError as err: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
605 if err.errno not in (errno.ENOENT, errno.ENOTDIR): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
606 raise |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
607 st = None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
608 yield st |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
609 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
610 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
611 def getuser(): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
612 '''return name of current user''' |
32129
f0ea0f642627
py3: make posix.getuser return a bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
31539
diff
changeset
|
613 return pycompat.fsencode(getpass.getuser()) |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
614 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
615 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
616 def username(uid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
617 """Return the name of the user with the given uid. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
618 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
619 If uid is None, return the name of the current user.""" |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
620 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
621 if uid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
622 uid = os.getuid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
623 try: |
38252
a4aa77b84efd
py3: make sure util.username() always returns bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
38166
diff
changeset
|
624 return pycompat.fsencode(pwd.getpwuid(uid)[0]) |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
625 except KeyError: |
38252
a4aa77b84efd
py3: make sure util.username() always returns bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
38166
diff
changeset
|
626 return b'%d' % uid |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
627 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
628 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
629 def groupname(gid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
630 """Return the name of the group with the given gid. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
631 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
632 If gid is None, return the name of the current group.""" |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
633 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
634 if gid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
635 gid = os.getgid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
636 try: |
41827
faa04f45b5fe
py3: make sure return value of posix.groupname() is bytes
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41523
diff
changeset
|
637 return pycompat.fsencode(grp.getgrgid(gid)[0]) |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
638 except KeyError: |
41827
faa04f45b5fe
py3: make sure return value of posix.groupname() is bytes
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41523
diff
changeset
|
639 return pycompat.bytestr(gid) |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
640 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
641 |
11138
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
642 def groupmembers(name): |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
643 """Return the list of members of the group with the given |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
644 name, KeyError if the group does not exist. |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
645 """ |
41523
3ef8bec91465
py3: do a fsdecode(), fsencode() dance in posix.py
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41504
diff
changeset
|
646 name = pycompat.fsdecode(name) |
3ef8bec91465
py3: do a fsdecode(), fsencode() dance in posix.py
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41504
diff
changeset
|
647 return pycompat.rapply(pycompat.fsencode, list(grp.getgrnam(name).gr_mem)) |
11138
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
648 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
649 |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
650 def spawndetached(args): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
651 return os.spawnvp(os.P_NOWAIT | getattr(os, 'P_DETACH', 0), args[0], args) |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
652 |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
653 |
10239
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
654 def gethgcmd(): |
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
655 return sys.argv[:1] |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
656 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
657 |
14908
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
658 def makedir(path, notindexed): |
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
659 os.mkdir(path) |
14909
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
660 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
661 |
14910
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
662 def lookupreg(key, name=None, scope=None): |
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
663 return None |
14911
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
664 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
665 |
14911
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
666 def hidewindow(): |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
667 """Hide current shell window. |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
668 |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
669 Used to hide the window opened when starting asynchronous |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
670 child process under Windows, unneeded on other systems. |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
671 """ |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
672 pass |
14926
4e7e63fc685a
util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents:
14911
diff
changeset
|
673 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
674 |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
675 class cachestat(object): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
676 def __init__(self, path): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
677 self.stat = os.stat(path) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
678 |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
679 def cacheable(self): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
680 return bool(self.stat.st_ino) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
681 |
15791
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
682 __hash__ = object.__hash__ |
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
683 |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
684 def __eq__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
685 try: |
18442
ecba9b0e7672
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686 # Only dev, ino, size, mtime and atime are likely to change. Out |
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687 # of these, we shouldn't compare atime but should compare the |
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688 # rest. However, one of the other fields changing indicates |
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689 # something fishy going on, so return False if anything but atime |
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690 # changes. |
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691 return ( |
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692 self.stat.st_mode == other.stat.st_mode |
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693 and self.stat.st_ino == other.stat.st_ino |
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694 and self.stat.st_dev == other.stat.st_dev |
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695 and self.stat.st_nlink == other.stat.st_nlink |
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696 and self.stat.st_uid == other.stat.st_uid |
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697 and self.stat.st_gid == other.stat.st_gid |
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698 and self.stat.st_size == other.stat.st_size |
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699 and self.stat[stat.ST_MTIME] == other.stat[stat.ST_MTIME] |
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700 and self.stat[stat.ST_CTIME] == other.stat[stat.ST_CTIME] |
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701 ) |
14927
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posix, windows: introduce cachestat
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702 except AttributeError: |
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posix, windows: introduce cachestat
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703 return False |
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704 |
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705 def __ne__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
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diff
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|
706 return not self == other |
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parents:
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707 |
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708 |
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util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
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|
709 def statislink(st): |
cafa447a7d3b
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parents:
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710 '''check whether a stat result is a symlink''' |
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Bryan O'Sullivan <bryano@fb.com>
parents:
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|
711 return st and stat.S_ISLNK(st.st_mode) |
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|
712 |
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|
713 |
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parents:
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diff
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714 def statisexec(st): |
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parents:
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715 '''check whether a stat result is an executable file''' |
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global: mass rewrite to use modern octal syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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716 return st and (st.st_mode & 0o100 != 0) |
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717 |
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718 |
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|
719 def poll(fds): |
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720 """block until something happens on any file descriptor |
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721 |
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722 This is a generic helper that will check for any activity |
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diff
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723 (read, write. exception) and return the list of touched files. |
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724 |
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725 In unsupported cases, it will raise a NotImplementedError""" |
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parents:
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726 try: |
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727 while True: |
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728 try: |
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parents:
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729 res = select.select(fds, fds, fds) |
5f33116cd787
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Yuya Nishihara <yuya@tcha.org>
parents:
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730 break |
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Yuya Nishihara <yuya@tcha.org>
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731 except select.error as inst: |
5f33116cd787
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|
732 if inst.args[0] == errno.EINTR: |
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Yuya Nishihara <yuya@tcha.org>
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733 continue |
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734 raise |
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735 except ValueError: # out of range file descriptor |
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parents:
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736 raise NotImplementedError() |
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737 return sorted(list(set(sum(res, [])))) |
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738 |
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739 |
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parents:
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|
740 def readpipe(pipe): |
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platform: implement readpipe()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
741 """Read all available data from a pipe.""" |
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parents:
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diff
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|
742 # We can't fstat() a pipe because Linux will always report 0. |
331cbf088c4c
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
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|
743 # So, we set the pipe to non-blocking mode and read everything |
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parents:
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|
744 # that's available. |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
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parents:
22245
diff
changeset
|
745 flags = fcntl.fcntl(pipe, fcntl.F_GETFL) |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
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|
746 flags |= os.O_NONBLOCK |
331cbf088c4c
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
747 oldflags = fcntl.fcntl(pipe, fcntl.F_SETFL, flags) |
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234e4c24b980
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
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|
748 |
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331cbf088c4c
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parents:
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diff
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|
749 try: |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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changeset
|
750 chunks = [] |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
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|
751 while True: |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
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|
752 try: |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
753 s = pipe.read() |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
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|
754 if not s: |
331cbf088c4c
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
755 break |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
756 chunks.append(s) |
331cbf088c4c
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
757 except IOError: |
331cbf088c4c
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
758 break |
331cbf088c4c
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
759 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
760 return b''.join(chunks) |
22246
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
761 finally: |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
762 fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags) |
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3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
763 |
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|
764 |
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parents:
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diff
changeset
|
765 def bindunixsocket(sock, path): |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
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diff
changeset
|
766 """Bind the UNIX domain socket to the specified path""" |
3239e2fdd2e2
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Yuya Nishihara <yuya@tcha.org>
parents:
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diff
changeset
|
767 # use relative path instead of full path at bind() if possible, since |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
768 # AF_UNIX path has very small length limit (107 chars) on common |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
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diff
changeset
|
769 # platforms (see sys/un.h) |
3239e2fdd2e2
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Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
770 dirname, basename = os.path.split(path) |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
771 bakwdfd = None |
45718
87c35b5a14eb
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Matt Harbison <matt_harbison@yahoo.com>
parents:
45717
diff
changeset
|
772 |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
Matt Harbison <matt_harbison@yahoo.com>
parents:
45717
diff
changeset
|
773 try: |
87c35b5a14eb
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Matt Harbison <matt_harbison@yahoo.com>
parents:
45717
diff
changeset
|
774 if dirname: |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
changeset
|
775 bakwdfd = os.open(b'.', os.O_DIRECTORY) |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
Matt Harbison <matt_harbison@yahoo.com>
parents:
45717
diff
changeset
|
776 os.chdir(dirname) |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
changeset
|
777 sock.bind(basename) |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
Matt Harbison <matt_harbison@yahoo.com>
parents:
45717
diff
changeset
|
778 if bakwdfd: |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
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parents:
45717
diff
changeset
|
779 os.fchdir(bakwdfd) |
87c35b5a14eb
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Matt Harbison <matt_harbison@yahoo.com>
parents:
45717
diff
changeset
|
780 finally: |
87c35b5a14eb
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Matt Harbison <matt_harbison@yahoo.com>
parents:
45717
diff
changeset
|
781 if bakwdfd: |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
changeset
|
782 os.close(bakwdfd) |